To promote a Jumia affiliate link on Facebook, it's important start by joining the Jumia affiliate program. Once you have your unique affiliate link, create engaging posts that highlight the products you want to promote. Share detailed descriptions, reviews, or personal experiences about the products to encourage people to click your link. You can also create Facebook stories or ads to increase visibility. Join relevant Facebook groups where people are interested in the products you’re promoting and share your affiliate link there. Make sure to follow Facebook's guidelines regarding affiliate marketing and disclose that the link is an affiliate link.